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The following ER diagram describes veterinarians examining cats at different locations. Note that the key Veterinarians is vid, the key of Cats is cid, and
The following ER diagram describes veterinarians examining cats at different locations. Note that the key Veterinarians is vid, the key of Cats is cid, and the key of Locations is lid fee vid vname cid cname color Veterinarians Examine Cats Locations lid locName Select a valid Oracle SQL query to find the names veterinarians who have examined the same blue cat at two different locations; that is, for a veterinarian's name to appear on the list, that veterinarian must have examined the same blue cat at two different locations, select distinct v.vid, v.vname from Veterinarians V Examine x Cats C where v.vid = X.vid AND x.cid = c.cid AND C.color = blue! group by v.vid, v. vname having (count (acid) >= 1) select distinct v.vid, v. vname from Veterinarians V, Examine X, Cats c where v.vid = x.vid AND x. cid = a.cid AND C. color = 'blue and count (c.cid) >= 1; select distinct v.vid, v. vname from Veterinarians V, Examine x1, Examine X2) VAS Cats C1, Cats 02 Locations lid locName Select a valid Oracle SQL query to find the names veterinarians who have examined the same blue cat at two different locations, that is, for a veterinarian s name to appear on the list, that veterinarian must have examined the same blue cat at two different locations select distinct vivid, v. vname from Veterinarians V. Examine x, Cats C where v.vid = x. vid AND x cid = c.cid AND C. color = blue group by v.vid, V.vname having (count (c.cid) >= 1); select distinct V.vid, v. vname from Veterinarians V, Examine x, Cats C where v.vid = x.vid AND x.cid = c.cid AND C.color = 'blue and count Kocid>= 1; select distinct v.vid, v. vname from Veterinarians V, Examine xi. Examine x2, Cats ci, Cats c2 where v.vid = X1.vid AND V.vid = X 2.vid AND Xilid X2.lid AND X1.cid = 1.did AND ci.color = 'blue' AND x2 cid = c2.cid AND C2.color = blue AND 02. cid = c1.cid; select distinct v.vid, v.vname from Veterinarians V, Examine X, Cats (1) Cats 02 where V.vid = x.vid AND X.cid c1.cid AND i.color blue AND X.cid = 02.cid AND C2.color = 'blue' AND c2.cid = i.cid; o none of these
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